The labels affixed to the inside of the cones doubled as the fastener for the cord. The loop fits on the chair corner nicely. You can also use ribbon and just tie it on. If you have nothing to to tie it to, put the lavender in tuille and tie it with ribbon. then you can rest the cones onguests seats.

Love the thought of using lavender but rose petals would also work here. You could hang them just on the aisle seats or have the flower girl hand them out as she walks down the aisle to be thrown later.